/usr/lib/python3/ is in python3-testing.postgresql 1.3.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/
/usr/lib/python3/dist-packages/testing/
/usr/lib/python3/dist-packages/testing/postgresql.py
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0-nspkg.pth
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0.egg-info/
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0.egg-info/PKG-INFO
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0.egg-info/dependency_links.txt
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0.egg-info/namespace_packages.txt
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0.egg-info/requires.txt
/usr/lib/python3/dist-packages/testing.postgresql-1.3.0.egg-info/top_level.txt